Shower-bath mixer.



W. INGHAM.

SHOWER BATH MIXER.

APPLICATION FILED AUG. 22, 1907.

953;;32 Patented. Apn, 1910.

ANDREW HGRAHAM cov pncro-umocwwnzws. WAsumG'oN 0 c.

Fryers ii inn v VJILLIALT INGHAI'IE, 3F CHICAGO, ELLINQIS.

SEOVTER-BATH Milillfi.

5353,??5'2 Specification r Letters Eatent. veg e My g g Application filed August 253, 199?. Serial No. 389,685

My invention relates to improvements in shower-bath mixers; or devices for tempering the water oi the shower bath spray; and it has lor its primary object the production of a mixing device that shall most ell'ectively teu'lper the spray of water to any desired extent and variation and with the most peri'ect possible uniformity. and that shall be under the most convenient and complete possible control of the use L; and it has for its further ob 'ects all such new advai'itages of function or construction as may be found to obtain in the devices hereinafter described or claimed.

in the accompanying drawing. forming a. part of this specification, Figure l is a front OlGVzhiiml of the device with a part of the wall of the mixing chamber broken a ay and one of the inlet valves shown in vertical section; Fig. 2 is a vertical section on line 2-2 of Fig. 1; Fig. 3 is a tragi'nentary sectional View of the valve-controlling device; and Fig. l is a plan view of the compound cam of said valve controlling device.

like reference numerals indicate parts in all the figures.

10 is the mixing chamber having the out let 11, which leads to the soower bath spray. Cold water is introduced to the chamber through the valve 12 and inlet nozzle 13,

like

and said nozzle is so recurved toward the center of the bottom of the chamber as to direct the outflow of cold water against the middle of said bottom and so cause a contrifugal spreading or distribution of the cold water current toward the cylindrical vertical wall of the chamber. Super-heated hot water or steam introduced into the chamber through the valve ll and inlet l5 said inlet having two orifices, the one leading into the larger coil 16 that rises in close proximity to the inner face of the vertical well of the mixing chamber, the other leading into the coil 14 of lesser bore and diameter, that rises within the aforesaid coil 16. The lesser coil 17 also makes one loop about the cold water nozzle 13 before its spiral rises toward the top of the chamber. it the top of the chamber the free end of each coil is brought over to and extended down through the middle part of the chamber within both coils, and such vertical legs, 18 and 19. cmistituting the tree ends of the coils. are each provided with erl orations so that suprnheutod 'ster or partially condensed steanii discharged fr in the said coils shall be comnnnnted or divided into a relatively lino spray as it comes into contact with. and is distributed through the body of water within. the chamber. The cold water introihueed into the chamber is lirst tempered indirectly by the per-heated water or steam )ilSHlllg up through the coils and is then further heated by direct contact with the comminuted spray from the perforate legs of the coils; and reciprocally the temperature of the superheated water is reduced, or the steam partially condensed, while passing through the coils so that when discl urged through the aforesaid perforations the contents of the coils do not produce the explosive peul'iding or backlash that re sults from discl superheated water or steam loo directly into relatively colder water within. a closed chamber. At the same time any steam pressure within the coils is of course transmitted to the l)()( y of water within the mixing chamber and serves to augment the pressure or the shower spray. This disposition oi the cold water inlet and the steam or hot water coils elliects a complete and instant mining and tempering oi. the spray water, so that the outflow entering the discharge orifice at the top of the mixing chamber is always of uniform temperature throughout its cross section and eliectively prevents the possibility of separate currents oi: cold and heated water simultaneously reaching diii'erent sides or parts of the shmver spray.

To conveniently control both the cold water valve and the steam valve at one motion of the hand of the operator I carry both valve stems 20 and. 21 from their respectivevalves to an intermediate controlling device 22, consisting in the compound cam 28 rotated by the handle-grip The greater member of this compound cam engages the valve stem of the cold water valve, and the lesser member of said cam engages the valve stem of the steam valve. And the two n embers oi the cam are so shaped and disposed that the hand grip is turned from its zero or closed position, the first quarter turn of the compound cam opens the cold water valve only, and then the next quarter turn partially opens the steam valve, and the third quarter turn completely opens the steam valve, the cold water valve remaining open throughout the said second and third quarters of the tota three quarter movement of the cam. The movement is checked at the three quarter point and its reversal simply reverses the condition of the valves and regulation of h steam and cold water fiow.

My invention is hereinabove set forth as embodied in one particular form of construction, but I do not limit myself thereto or to less than all the possible forms in which the said invention as hereinafter claimed may be embodied and distinguished from prior devices for like purposes.

I claim 1. In a shower bath mixer, in combination a mixing chamber having an outlet and a cold water inlet, and a contained coil for superheated water or steam, said coil. having at its free end means for comminuting the discharge of its contents within said chamber, substantially as specified.

2. In a shower bath mixer, in combination, a mixing chamber having an outlet and a cold water inlet, means for spraying the inpour of cold water at said inlet, and a contained coil for superheated water or steam, said coil having at its free end means for comminuting the discharge of its contents within said chamber, substantially as specified.

3. In a shower bath mixer, in combination, a mixing chamber having an outlet and a cold water inlet, means for directing said cold water against the bottom of the chamber, and a contained coil for superheated water or steam, said coil having at its free end means for comminuting the discharge of its contents within said chamber, substantially as specified.

4. In a shower bath mixer, in combination, a mixing chamber having an outlet and a cold water inlet, said inlet being a recurved nozzle for directing said cold water against the bottom of the chamber, and a contained coil for superheated water or steam, said coil having at its free end means for comminuting the discharge of its contents within said chamber, substantially as specified.

5. In a shower bath mixer, in combination, a mixing chamber having an outlet and a cold water inlet, and a contained coil for superheated water or steam, said coil having at its free end a perforated member for comminuting the discharge of its contents within said chamber, substantially as specified.

6. In a shower bath mixer, in combination, a mixing chamber having an outlet and a cold water inlet, and a contained coil for superheated water or steam, said coil having at its free end a perforated leg for comminuting the discharge of its contents within said chamber, substantially as specified.

'7. In a shower bath mixer, in combination, a mixing chamber having an outlet and a cold water inlet, and a contained coil for superheated water or steam, said coil having at its free end a perforated vertical leg for comminuting the discharge of its contents within said chamber, substantially as specified.

8. In a shower bath mixer, in combination, a mixing chamber having an outlet and a cold water inlet, and two contained coils for superheated water or steam, said coils having at their 'ree ends means for comminuting the discharge of their contents within said chamber, substantially as specified.

9. In a shower bath mixer, in combination, a mixing chamber having an outlet and a cold water inlet, and having an outer major coil and an inner lesser coil for superheated steam or water, said coils having at their free ends means for comminuting the discharge of their contents within said chamber, substantially as specified.

10. In a shower bath mixer, in combination, a mix g chamber having an outlet and a cold water inlet, and an outer major coil and an inner lesser coil for superheated steam or water, each of said coils having at its free end separate means for comminuting the discharge of its contents within said chamber, substantially as specified.

11. In a shower bath mixer, in combination, a mixing chamber having an outlet and a cold water inlet, and an outer major coil and an inner lesser coil for superheated steam or water, each of said coils having at its free end a perforated member for comminuting the discharge of its contents within said chamber, substantially as specified.

12. In a shower bath mixer, in combination, a mixing chamber having an outlet and a cold water inlet, and an outer major coil and an inner lesser coil for superheated steam or water, each of said coils having at its free end a perforated leg for comminuting the discharge of its contents with in said chamber, substantially as specified.

13. In a shower bath mixer, in combination, a mixing chamber having an outlet and a cold water inlet, and an outer major coil and a lesser inner coil for superheated steam or water, each of said coils having at its free end a perforated vertical leg for comminuting the discharge of its contents within said chamber, substantially as specified.

14. In a shower bath mixer, in combination, a mixing chamber having an outlet and a cold water inlet, a contained coil for superheated water or steam, said coil having at its free end means for comminuting the discharge of its contents Within said chamber, said chamber having adjacent to it separate valves for said cold water inlet and the inlet of said coil, and a single controlling device for sii'nultaneously controlling both valves, said device being adapted first to open fully the cold Water inlet and then to open progressively the hot Water inlet, substantially as specified.

15. In a shower bath mixer, in combination a mixing chamber having an outlet and a cold water inlet, and contained coils for superheated Water or steam, said coils having at their free ends means for comminuting the discharge of their contents Within said chamber, said chamber having adjacent to it separate valves for said cold Water inlet and the inlet of said coils, and a single controlling device for simultaneously controlling both valves, said device being adapted lirst to open fully the cold Water inlet and then to open progressively the hot Water inlet, substantially. specified.

16. In a shower bath mixer, in combination, a mixing chamber having an outlet and a cold Water inlet, an outer major coil and an inner lesser coil for superheated steam or Water, each of said coils having at its free end means for comminuting the discharge of its contents Within said chamber,

separate valves for said cold Water inlet and the inlet of said coils, and a single controlling device for simultaneously controlling both valves, substantially as specified.

17. In a shower bath mixer, in combination, a mixing chamber having an outlet and a cold Water inlet, an outer major coil and an inner lesser coil for superheated steam or water, each of said coils having at its free end a perforated vertical leg for comminuting the discharge of its contents Within said chamber, separate valves for said cold Water inlet and the inlet of said coils, and a single controlling device for simultaneously controlling both valves, sub stantially specified.

18. In a shower bath mixer, in combination, a mixing chamber having an outlet and a cold Water inlet, an outer major coil and an inner lesser coil for superheated steam or Water, each of said coils having at its free end a perforated vertical leg for comminuting the discharge of its contents Within said chamber, separate valves for said cold water inlet and the inlet of said coils, and a single cam-device for simultaneously controlling both valves, substantially as specified.

lVlLLlAM INGHAM. VTitnesses H. M. MUNDAY, HENRY Lovn CLARKE. 

